/*
 * Copyright 2000-2010 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.intellij.history.core;

import com.intellij.history.core.changes.ChangeSet;
import com.intellij.util.Consumer;
import gnu.trove.TIntHashSet;
import org.jetbrains.annotations.Nullable;

public interface ChangeListStorage {
  void close();

  long nextId();

  @Nullable
  ChangeSetHolder readPrevious(int id, TIntHashSet recursionGuard);

  void purge(long period, int intervalBetweenActivities, Consumer<? super ChangeSet> processor);

  void writeNextSet(ChangeSet changeSet);
}